{"entry":{"fixtureId":"attack-xchain-evm-hashlock-family-mismatch-v0","appSlug":"attack-xchain-evm-hashlock-family-mismatch","appName":"ATTACK: evm-hashlock-family-mismatch","reportId":"lab_attack-xchain-evm-hashlock-family-mismatch-v0_20260610225855226","generatedAt":"2026-06-10T22:58:55.226Z","status":"pass","jsonPath":"/bundle/server-functions/default/.nocklab/attack-xchain-evm-hashlock-family-mismatch.report.json","markdownPath":"/bundle/server-functions/default/.nocklab/attack-xchain-evm-hashlock-family-mismatch.report.md","reportHash":"sha256:e3939f1e2446edba9ac28d18238619f2a45ef357d96ca1c3ab5de585c052fb80","snapshotRoot":"b4ddfc9ab370f349","badgeCandidate":{"id":"badge-candidate-attack-xchain-evm-hashlock-family-mismatch","label":"ATTACK: evm-hashlock-family-mismatch Verification Candidate","reportSlug":"attack-xchain-evm-hashlock-family-mismatch","fixtureId":"attack-xchain-evm-hashlock-family-mismatch-v0","status":"watch","evidenceKind":"exploit-prevention","statusReDerived":"pass","statusConsistent":true,"kernelHash":null,"kernelVerified":false,"baseDeploymentHash":null,"baseVerified":false,"signatureStatus":"unsigned","evidence":{"reportHash":"sha256:e3939f1e2446edba9ac28d18238619f2a45ef357d96ca1c3ab5de585c052fb80","snapshotRoot":"b4ddfc9ab370f349","invariantPacks":[]}},"stepsPassed":1,"stepsTotal":1,"invariantsPassed":0,"invariantsTotal":1,"alertsTriggered":0,"snapshotsCaptured":2,"adapterObservationCount":0,"invariantPackCount":0},"report":{"reportId":"lab_attack-xchain-evm-hashlock-family-mismatch-v0_20260610225855226","fixtureId":"attack-xchain-evm-hashlock-family-mismatch-v0","generatedAt":"2026-06-10T22:58:55.226Z","app":{"name":"ATTACK: evm-hashlock-family-mismatch","slug":"attack-xchain-evm-hashlock-family-mismatch","version":"0.0.1","kernel":"xchain-attack-model"},"environment":{"mode":"mock-fakenet","grpcEndpoint":"n/a","fakenetCommand":"model","notes":["NEGATIVE CONTROL (expectRejected=true): a multi-EVM cross-chain exploit the invariant MUST catch.","An Optimism (10) HTLC leg locked under tip5 - a hash no EVM chain can compute (registry-driven check).","expectRejected inverts a CAUGHT exploit to a green proof-of-prevention."]},"summary":{"status":"pass","stepsPassed":1,"stepsFailed":0,"invariantsPassed":0,"invariantsFailed":1,"alertsClear":0,"alertsTriggered":0,"snapshotsCaptured":2,"durationMs":17,"expectRejected":true,"rawStatus":"fail"},"invariantPacks":[],"steps":[{"id":"observe","type":"bridge","title":"Observe terminal joint multi-EVM state","status":"pass","expectation":"xchain.observed == true","observed":"true","beforeHash":"876c8c71e70278a6","afterHash":"b4ddfc9ab370f349","stateDiffs":[{"path":"xchain.observed","before":"undefined","after":"true"}],"durationMs":19}],"invariants":[{"id":"hashlock-algo","title":"Each leg uses a hash its chain can compute","severity":"critical","status":"fail","observed":"HASHLOCK MISMATCH: optimism: tip5 not computable on that chain (allowed: keccak256/sha256)","expected":"each HTLC leg locks the shared preimage under a hash its own chain can compute, with distinct per-chain commitments, under xchain.htlc"}],"alerts":[],"adapterObservations":[],"stateSnapshots":[{"label":"Initial state","stateHash":"876c8c71e70278a6","state":{"xchain":{"htlc":{"preimage":"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa","legs":[{"chainId":137,"chain":"polygon","hashAlgo":"keccak256","commitment":"p0lyaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa","derivedFromSharedPreimage":true},{"chainId":10,"chain":"optimism","hashAlgo":"tip5","commitment":"opt1bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb","derivedFromSharedPreimage":true}]}}}},{"label":"After observe","stateHash":"b4ddfc9ab370f349","state":{"xchain":{"htlc":{"preimage":"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa","legs":[{"chainId":137,"chain":"polygon","hashAlgo":"keccak256","commitment":"p0lyaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa","derivedFromSharedPreimage":true},{"chainId":10,"chain":"optimism","hashAlgo":"tip5","commitment":"opt1bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb","derivedFromSharedPreimage":true}]},"observed":true}},"stepId":"observe"}],"stateDiffs":[{"path":"xchain.observed","before":"undefined","after":"true"}],"nextActions":["Replace mock poke and peek execution with local fakenet adapter calls.","Replace command-backed fakenet metadata probes with stable gRPC-native probes once node surfaces are available.","Persist generated reports under a project workspace.","Add app-specific invariant packs as the NockApp interface stabilizes."]},"markdown":"# ✅ ATTACK: evm-hashlock-family-mismatch Lab Report\n\n> **PASS** — 1/1 steps · 0/1 invariants · 0 alerts · 17ms\n\n| Field | Value |\n| --- | --- |\n| Report | `lab_attack-xchain-evm-hashlock-family-mismatch-v0_20260610225855226` |\n| Fixture | `attack-xchain-evm-hashlock-family-mismatch-v0` |\n| Status | ✅ pass |\n| Steps | 1 passed, 0 failed |\n| Invariants | 0 passed, 1 failed |\n| Alerts | 0 clear, 0 triggered |\n| Snapshots | 2 |\n\n## Steps\n\n- ✅ `observe` — true _(xchain.observed == true)_; 876c8c71e70278a6 -> b4ddfc9ab370f349\n  - xchain.observed: undefined -> true\n\n## Invariants\n\n- ❌ `hashlock-algo` — HASHLOCK MISMATCH: optimism: tip5 not computable on that chain (allowed: keccak256/sha256) _(expected each HTLC leg locks the shared preimage under a hash its own chain can compute, with distinct per-chain commitments, under xchain.htlc)_\n\n## Alerts\n\n- No alert policies configured.\n\n## Adapter Observations\n\n- No adapter observations captured.\n\n## State Diffs\n\n- xchain.observed: undefined -> true\n\n## Snapshot Timeline\n\n- Initial state: 876c8c71e70278a6\n- After observe: b4ddfc9ab370f349\n\n","evidence":{"stateDiffCount":1,"snapshotCount":2,"alertCount":0,"triggeredAlertCount":0,"clearAlertCount":0,"triggeredCriticalAlertCount":0,"triggeredWarningAlertCount":0,"triggeredInfoAlertCount":0,"environmentMode":"mock-fakenet","grpcEndpoint":"n/a","environmentNoteCount":3,"nextActionCount":4,"firstNextAction":"Replace mock poke and peek execution with local fakenet adapter calls.","invariantPackCount":0,"invariantPackIds":[],"invariantPackDomains":[],"firstInvariantPackPath":"","changedPaths":["xchain.observed"],"markdownPreview":"# ✅ ATTACK: evm-hashlock-family-mismatch Lab Report"}}